Tectonic evolution of the Tethyan Himalaya in SE Tibet deduced from magnetic fabric, structural, metamorphic and paleomagnetic data [Elektronische Ressource] / vorgelegt von Borja Antolín Tomas

Tag der mündlichen Prüfung: 21. 05. 2010 Dekan: Prof. Dr. Peter Grathwohl 1. Berichterstatter: Prof. Dr. Erwin Appel 2. Berichterstatter: Prof. Dr. Lothar Ratschbacher In between this study (2007) was the 25th anniversary of the Declaration of Kathmandu Abstract A multidisciplinary approach was carried out to elucidate the kinematic and metamorphic evolution of the Tethyan Himalayan sequence in SE-Tibet in order to contribute to the understanding of continental collision orogens as the Himalaya. Phyllosilicates preferred orientation interpreted from magnetic fabric studies, structural-field data, illite crystallinity, vitrinite reflectance and K/Ar dating were analyzed to characterize the deformation and metamorphic phases of the Triassic flysch sequence in the eastern Tethyan Himalaya. The second part of the thesis utilizes a paleomagnetic approach to determine the Miocene vertical-axis block rotation pattern in SE-Tibet and kinematic implications for the Himalayan Belt and southeastern Tibetan Plateau evolution. Additionally the paleomagnetic study was extended to the southern most area of the Tethyan Himalayan sequence within the Lingshi klippe in NW Bhutan. The tectonometamorphic evolution of the Triassic flysch in SE-Tibet can be summarized as follows.